Mesa, AZ
Quoted from brettybluevein:That's mylar buddy. It's a thick clear film that protects the playfield. Installed on a lot of games from the factory during the 80's/90's. Now they use a better spray on clear coat. Clean it and leave it alone unless you really just feel like it needs to come off, and proceed with caution if you decide to remove. Good luck!!!
Mylar is still used on new games as well. My MET has factory mylar in pop bumper area, in front of scoop hole, and the snake. It's not a 80's or 90's thing.
